This example shows a network graph of Netflix’s content and technology structure, with nodes for categories like Originals, Licensed, Movies, and Engineering connected by hierarchical links. A force-directed layout positions the nodes and edges, with circles and text labels rendered as SVG elements. The code uses D3 v4’s `d3.layout.force()` and `force.drag()` to simulate physics and enable dragging, while tick events update line coordinates and node transforms. The visualization reads node and link data from a static JSON array embedded in the script, omitting the external `data.json` file despite the HTML referencing it.